Arden Selections 18-in x 20-in Stone Grey Leala Patio Chair Cushion in the Patio Furniture Cushions department at Lowes.com
Jordan Manufacturing 18 in. W x 18 in. D x 4 in. Thick Covert Fiesta Stripe Multi-Color Stripe Square Tufted Outdoor Seat Cushions (2-Pack) 9915PK2-4243D - The Home Depot
Jordan Manufacturing 18 in. W x 18 in. D x 4 in. Thick Westport Teal Stripe Multi-Color Stripe Square Tufted Outdoor Seat Cushions (2-Pack) 9915PK2-2413D - The Home Depot
Sunbrella 18 in Square Outdoor Tapered Chair Cushion - 0 - On Sale - - 11526282